Clutch.



H. A. BUDDE.

CLUTCH.

APPLICATION FILED JAN.8,'1912.

Patented N0v.5,1912.

lfnesses; Inverzo'r:

marini) sTATns PATENT OFFICE.

HENRY A. BUDDE, or MANCHESTER, CONNECTICUT.

CLUTCH.

['o all whom it may concern:

Be it known that I, HENRY A. BUDDn, a citizen of the United States,residing at Manchester, in the countyof Hartford and State ofConnecticut, have inventedL certain new and useful Improvements. inClutches, of which the following is a` speciication.

This invention relates to clutches, and while I do vnot restrict myselfto the incorporation of the invention in any particular type ot' clutch,said invention has. peculiar utility when embodied in a friction clutch.

provided with an expansible ring and an operating lever therefor, theprimary object of 'the invention being to provide simple and etlectivemeans for. securely holding such an operating lever (or levers) inposition and also in providing means possessing similar attributes forholdingthe take-up screw or screws which operate in connection with afulcrum or contact block or blocks carried by said lever or levers.

In the drawings accompanying and formot the invention included by said.claims.

Referring to saidy drawings: Figure l is a longitudinal sectional viewoftransmission gearing provided with clutch mechanism including myinvention. 2 is a plan view of a {air/of' expan ing ring operatinglevers. i0. 3-.is across section on the.l,I1,e. ..3,-r3ot, 4 is asectional View on the line 4-4 of Fig. 2. Fig. 5 is a sectional view onthe line 5-5 of Fig. 4.. Fig. (i is a like view on the line 6-6 of Fig.2. l

Iuike characters refer to llike arts throughout the several figures ofthe rawings, which it will be observed are on different scales. f

Vihile I do not restrict myself to the employment of the clutchmechanism in `any particular connection, the. same is illustrated asused in conjunction with or as part of transmission'gearing such asshown Specification of Letters Patent.

divided ring.

"ig. 1. Fig.`

Patented Nov. 5, 1912.

Application tiled January 8, 1:1112. Serial Ho. 670,004.

in Let-ters Patent No. 1,001,615 granted to me on August 29, 1911 and towhich reference may 4be had, an improvement of said transmissionVgearing involving said clutch mechanism being also illustrated in mycopending application Serial No. 670,003, tiled v January 8, 1912. Inview of these reasons it isnot necessaryfor'me to describe the4transmission gearing in detail, although the same might be denoted in ageneral Way by 10. Said transmission` gearing involves `a clutch member11 which is keyed to the driving shaft 12, 11 may be of any suitableform it is shown as a cup and as inclosing the split or divided frictionring 13 `rotative with the gear carrier 14.-. When the ring 13 isexpanded into frictional engagementwith the inner surface of the cup -orclutch member 11, the gear carrier 14 will be connected toand willrotate with the said shaft 12, provided the latter bein motion. Betweenthe ends of the divided ring are mounted companion rocking or swingingleversf15 and 16 provided withv fulcrum or contact v blocks 17 and 18and also provided withoutwardly extending semi-circular lugs 1 9 and 20adapted to engage corresponding seats or apertures inthe ends of saidsplit or The Contact or fulcrum blocks 17 and 18 engage each other.wWhen the tails of the two levers 15 and 16 are spread the ring 13 willbe expanded into t'rictional 4engagement with the cup' 11 to accomplishthe function already mentioned. The contact or fulcrum blocks areadjustable,.depthwise of the levers 15 and 16 for the purpose of takingup wear therein, and they are operatively connected so that when one'ismoved through some primary agency the other one will be correspondingly...shifted One of the blocks may lbeproing in the other, the pin in thepresent c. e bei'ng on the block 18 which is direc y operated by anadjusting member such as the screw 22 which in the resent case is tappedinto the lever '16. T e foregoing is a general description of a knowntype of clutch in which my invention is incorporated. As this form ofclutch is common it vided witha pin` 21 to extend into an opofisneedless for me to describe the same further in detail. It has been adiicult matter to properly hold this adjusting screw in its seat andvarious expedients have been N adopted to accomplish this end, none ofand although this clutch member l ation was attended by some expense. Iprohas been found particularly advantageoglits."

j nular lprojection'23. It willy-therefore, be

l into said groove so that when the said flange` manner alreadyindicated.

in a very simple, inexpensive manner, the

i `stance to'secur'e. said result. The shank of lwill yieldingly embracethescrew, and this ment of the screw. Under all circumstances them beingwholly satisfactory. Ithas been thepractice to-split or dividetle4screwcarrying'lever in suchl waythat 'said lever hugging of the screw bythe lcarrying lever has heretofore been utilizedA to prevent movethis isnot altogether successful.A In addi-V tion to this the labor of kerngsaid screw carrying lever was bothersome and the opervide means forsecurely holding `said screw in place without kering, cutting orotherwise weakening its carrying lever, and although Ido not restrictmyself to the means now to be specifically described, the same The screw22'is providedv with an` annular flange 23 which isset in the-coufnterbore 24 of the lever 16, the block 18 having a groove orchannel 25 to receive said flange or ancle'ar that when the screw 22i'sf'turned into its seat. the block 18 and hence the 4block 17 throughits described connection with the block 18 can. be adjustedtotake upwear. The annularflange 23- is provided with Aa circumferentialcontinuous groove=26 to receive the divided or splitV spring-.ring 27which is rst opened out andthen sprung 23 is in thecounterbore 24,thespring can engage the wall 'of the counterbore'and thus efectuallyand securely hold the screw against accidental movement such as wouldoccur on vibration. l The screw-can be .freely adjusted, however,-totake up -wear 1n the screw 28-being provided in the presentinsaidscrew'28 is tapped into the gear carrier 14 between the two'levers 15vand 16 which have notcheseach denoted by 29 in their adjacent oropposite faces to -receive the said shank. The .head 30 of ,saidv screw28 'overlies the outer faces of the two levers and is accidentaldis-placement of said levers, said headbeing made of suiicient diameteras fo i preventthe disadvantage mentioned when said levers are spreadvor separated a pre- 65 determined extent.

What I claim isz.

1. A clutch comprising a resilient ring and an expanding lever therefor,said lever being provided with a contact block and with,- a screw foradjusting .said contact block, and a sprlng carried by the screw, tlielever having a surface engageable by said spring to'thereby preventaccidental movement of the screw. l- 7 2. A clutch comprising aresilient ring and an expanding lever therefor, said lever beingprovided with an adjustable member and with a .screw for adjusting saidadjustable member, having a groove to receive said locking spring, andthe latter engaging the lever to prevent accidental movement of. saidlever.

3. A` clutch comprising a resilient ring and a locking spring, thescrew' 80 and an expanding lever therefor, said lever being providedwith a contact block and with a screw 4for adjusting said block, thescrew having an annular flange and the lever having a counterbore toreceive said flange, andai divided spring ring, said flange having anu'annular groove into which said divided ring is sprung and the springring being adaptedy to engage the surface'of said counterbore 4toprevent accidental movement of said screw. 'y

4t: A clutch comprising a resilient ring, a pair of expanding rockinglevers for said ring, a supporting body for the levers and ring, and amember having a fixed relation with respect to both oi said levers andpro- 10( vided with retaining meanso-verlying both the levers.

5. A clutch comprising a resilient ring, a i' pair of expanding rockinglevers for said ring, ring, having a fixed relation with respect to saidlevers, anda screw tapped into said supporting body between the levers,the

screw havlng a head overlying both levers.

In testimon whereof I allx my 'signature 110 -1 Gcpiles ai this patentmay be obtained for iive cents each, by addressingthe Commissioner ofPatents,

, washington, D. c.

a Supporting bOdy fOr the levers and 'i105

